Web Site for choose a place in a concert

Implement on a website the functionality to choose a place at a concert. You should know that the map by locations is dynamic. For example, at a concert, I can have a section with tables and chairs. The user can select the entire table or any chair at a table. The first row can have 20 tables, the second 22, and so on.

The site should have two options, the first to configure the map by locations and the second to choose one.

I have the site ready, but I need to incorporate that functionality into it.